docs: def release(self, tid, fh):
  
          """
          Close file. Descriptor is removed from ``self.fds``.
  
          Parameters
          ----------
          tid : str
              Path to file. Ignored.
          fh : int
              File descriptor to release.
          """
  
          try:
              try:
                  self.fds[fh].unregisterHandler(fh)
  
              except AttributeError:
                  pass
  
              del self.fds[fh]
  
          except KeyError:
              raise FuseOSError(errno.EBADF)
  
          return 0